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' SPINNING MACHINE. No. 370,324. Patented Sept. 20, 1887.

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UNITED STATES PATENT FEICE.

GEORGE WV. OUMNOOK, OF WOONS OCKET, RHODE ISLAND.

SPINNING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 370,324, datedSeptember 20, 1887.

Application filed November 8, 1886. Serial No. 218.232. N model.)

T0 aZZ whom it nut/y concern Be it known that I, GEORGE W. CUMNOOK, ofWVoonsocket, in the county of Providence and State of Rhode Island, haveinvented certain new and useful Improvements in Spinning- Machines, ofwhich the following is a full,"

' clear, and exact description, reference being had to the accompanyingdrawings, forming part of this specification.

This invention relates to spinningmachiues, such as ring, flyer, and capspinning-frames, in which the guide-wires are mounted upon aguide-board, which is hinged upon the rollerbeam of the machine.

In this class ofspinning-machines the hinged guide-board permits of theguide-wires being raised and lowered simultaneously, so that the filledbobbins may be doffed and replaced at the same time, and, moreover, eachguide-wire is individually controlled by an independent block hinged tothe guide-board. I

In the operation of doffing and replacing the bobbins upon the spindlesit is desirable to use mechanism whereby the yarn may be maintainedtaut, to prevent looping and kinking, which affects the quality of theyarn, and, further, to prevent displacement of the yarn from the guidesbecause of slack.

The objects of my invention are to provide a simple mechanism forholding the guide board and blocks out of the way while dotting.

To the aforesaid purposes my invention consists in the certain novel andpeculiar constructions and arrangements of the several parts of themechanism, all as hereinafter fully described and claimed.

In the accompanying drawings, illustrating my invention, Figure 1represents a vertical roller-beam 6 by means of hinges 10. A set ofguide-blocks, 1.1, are hinged upon the guideboard, and each one isprovided with aguidewire, 12. The spindle 13 (shown in portion inFig. 1) passes up through the bolster-rail 14,

and carries the bobbin 15. The traverse or ring-rail 16 is provided withring 17. The yarn 18 runs from rolls 8 through guide-Wire 12, and thetraveler, which is not shown, on the ring 17 to the bobbin 15.

The foregoing-described parts are wellknown parts of a spinningmachine,and are arranged and operated in the usual manner, and with which may beused my improved doffing mechanism, which I will now proceed todescribe.

The locking-plate 19 is flat, and is provided with an integral handle,20, and has an aperture or slot, 21, cut through the body of the plate.The end of the locking-plate remote from the handle is secured by meansof screws 22 upon the under side of the guide-board 9, so that the slot21 may be clear of said board and the handle may project outwardly, asindica-ted.

Upon the roller-stand 7 is fixed by means of a screw, or otherwisesuitably secured thereto, a bracket, 23, provided with twooutwardlyextending ears,24, through and between which passes the fixedhinge-pin 25, upon which turns the gravity-locking detent 26, which isprovided with an eye for said hinge-pin. The

outer free end of the detent 26 is formed with a hook, 27, which isadapted and designed to pass through the slot 21 in the locking-plate inthe direction of from the upper to the un der face of said plate and thehooked end of the detent to engage and lock with the slot in an obviousmanner and as clearly indicated.

In order to give the locking-detent 26 free access to the slot in'thelocking-plate, which is conveniently set back under the guideblocks, Icut away the abutting faces of two adjacent guide-blocks,1l, as at 28,which cutaway portions form an opening which registers with the slot inthe locking-plate, so as to allow the detent to pass through and lockwith the locking-plate, as above described.

It is to be observed that the slot of the locking-plate may be reachedby the detent by forming an opening through the body of a. guide-block11, in preference to cutting away the side edges of a pair ofguide-blocks, as I have shown.

The locking detent 26 is constructed to hang outwardly and slightlydownwardly, as shown in Fig. 1, and is loosely hinged or pivoted, asbefore described, so that ithas a slight play or oscillation in avertical plane, and when it is knocked or tripped upwardly it willgravitate into normal position. 1

From the above description it will be readily understood that when it isdesired to simultaneously elevate the guide-board and the superposedguide-blocks and guide-wires the operator manipulates the handle 20 ofthe locking-plate and pushes the handle up into the raised position ofFig. 2, and this movement causes the opening in the guide-blocks and theslot in the locking plate to pass over the hooked end of thegravity-detent 26, which is tripped .by said plate, and then falls byits own weight into the locked position of Fig. 2. When it is desired tolower the guide-board into the position of Fig. 1, the operator seizesthe-handle 20, and at the same. time lifts the detent 26 out ofengagement with locking-plate 19, whereupon the board may be releasedand lowered.

There may be various modifications made in the principal parts of myinvention, without, however, makinga substantial departure from thespirit of the same 'as herein claimed.

Having thus described my invention,I claim as new and desire to secureby Letters Patent- 1. The combination, with a roller-beam and asuperposed roller-stand, of a guide-board hinged to said roller-beam, aset of guideblocks hinged upon said guide-board and each block providedwith a guide-wire, a lockingplate provided with a handle and securedupon the under side of said guide-board and having a slot formed in thebody thereof, the haudle projecting out from said guide-board and theslot disposed clear of the board, the guideblocks cut away to form anopening registering with the slot in the locking-plate, a hingebracketsecured upon said roller-stand, and a gravity-locking detent hinged byone end to said bracket and having the other end hooked, substantiallyas described, whereby upon raising the guide-board the detent mayproject described and through the opening in said guide-blocks and theslot of the locking-plate and may be tripped into the locked position,as set forth. 2. The combination of the roller-beam 6, the superposedroller-stand 7, the hingebracket 23, and the gravity-detent 26, hingedto said bracket, the guide-board 9, hinged .to said roller-beam andprovided with theset of hinged guide-b1ocks 11, each having aguide-wire, 12, and the locking-plate 19, provided with slot 21, andhaving the integral handle 20 and secured upon the guideboard, theguide-blocks cut away, as at 28, all substantially as and for thepurpose herein described.

In witness whereof I have hereunto set my hand.

GEORGE W. GUMNOOK. Witnesses:

J. A. MILLER, J r., M. F. BLIGH.

